Radioactive decay is a spontaneous and random process. A block of radioactive material will contain many trillions of nuclei and not all nuclei are likely to decay at the same time so it is ...

It also means that the process of radioactive decay cannot be speeded up or slowed down by any physical changes such as a change of temperature or pressure. A random process means that scientists ...

The "Gilbert U-238 Atomic Energy Laboratory" contains four real and radioactive uranium ores for kids to experiment with.

The play set, created by Alfred Carlton Gilbert, was designed to be fun and educational for kids while also helping to enhance the public’s overall ... It also came with an electroscope for measuring ...